What does '.010 Oversize' mean for these bearings?

This means the bearings are manufactured to be slightly smaller than standard size. They are intended for use when the crankshaft journals have been machined down by .010 inches to remove wear or damage. It's crucial to have your crankshaft journals measured and machined to this specific undersize before installing these bearings.

What is the purpose of the 120-degree oil groove?

The 120-degree oil groove is designed to help distribute oil more evenly around the crankshaft journal. This ensures that the bearing receives a consistent supply of lubrication, which is critical for reducing friction and preventing overheating.

Are these bearings suitable for all LS engines?

These bearings are specifically designed for GM LS Gen III and IV V8 engines. While they fit many applications within those generations, it's always best to confirm your specific engine model and verify that your crankshaft has been machined to the .010 inch undersize specification.

ACL Main Bearing Set .010 Oversize 5M7299H-010

Name: ACL Chevy V8 LS Gen III/IV .010 Oversized Main Bearing Set
Brand: ACL
Price: 162.27 USD
Availability: InStock

ACL Chevy V8 LS Gen III/IV .010 Oversized Main Bearing Set

$162.27

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ACL Chevy V8 LS Gen III/IV .010 Oversized Main Bearing Set. Designed for GM LS Gen III - IV engines needing a .010" undersize bearing.

Key Features

Fits 1999-2019 Chevrolet Silverado 1500/2500/3500, 2000-2014 Chevrolet Suburban 1500/2500, 2000-2013 Chevrolet Tahoe, and many other GM LS Gen III/IV V8 vehicles.
Main bearing set is .010 inch (0.25mm) undersize for use with machined crankshaft journals.
Features a 120-degree oil groove for improved oil circulation.
Built by ACL, a well-known manufacturer of engine bearings.

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Will this fit your vehicle?

Product Details

When you're rebuilding a GM LS Gen III or IV V8 engine and need to address crankshaft journal wear, a set of precision bearings is crucial. This main bearing set from ACL is specifically made to a .010 inch (0.25mm) undersize, meaning it's intended for crankshafts that have been machined down to compensate for wear or damage. The 120-degree oil groove design helps ensure consistent oil flow to the main bearings, which is vital for keeping your engine running smoothly and preventing premature wear.

ACL has been making engine bearings for a long time, and this set is built to handle the demands of LS engines. They use a well-built material composition designed for durability and proper load-carrying capacity. Installing bearings is a critical step in any engine rebuild, and using the correct undersize bearings ensures your crankshaft has the right clearance for optimal oil pressure and longevity. Make sure you've had your crankshaft journals measured and machined to the correct .010 inch undersize before ordering these bearings.

This set is designed to fit a wide range of GM LS Gen III and IV V8 applications. Always double-check your engine's specific requirements and ensure your crankshaft has been machined to the .010 inch undersize specification before installation.